Tobiah and Sanballat. See Nehemiah 6:12, with the comment. The prophetess Noadiah is not elsewhere mentioned. She has been supposed to have succumbed to a bribe, like Shemaiah (Ewald); but this is wholly uncertain.
We only know that, together with certain soi-disant prophets, she endeavoured to "put Nehemiah in fear." It is clear that she was unsuccessful.